Nrog rau txoj kev loj hlob sai ntawm LED zaub thev naus laus zis, LED cov khoom lag luam qhia pom kev txhim kho muaj ntau yam. Niaj hnub no LED cov ntxaij vab tshaus niaj hnub no tau siv dav hauv ntau qhov kev lag luam. Txawm li cas los xij, rau cov pib tshiab, ntau nqe lus kev ntawm LED zaub siv. Kuv tsis paub, yog li cov ntsiab lus uas siv rau cov duab LED yog dab tsi?
LED lub teeb ci: Lub ci ci ntawm lub teeb pom kev zoo ib txwm qhia los ntawm Luminous Intensity hauv cov chav ntawm Candela cd; 1000ucd (micro-candela) = 1 mcd (mound candela), 1000mcd = 1 cd. Lub teeb siv ntawm ib qho LED rau kev siv sab hauv yog feem ntau 500ucd-50 mcd, thaum lub teeb siv ntawm ib qho LED rau sab nraum zoov feem ntau yuav tsum yog 100 mcd-1000 mcd lossis txawm tias 1000 mcd lossis ntau dua.
LED pixel module: Cov LEDs tau teeb tsa hauv qhov ua lej lossis cov cwj mem ntu, thiab yog prefabricated rau hauv cov qauv loj. Cov zaub nyob sab hauv tsev feem ntau siv 8 * 8 pixel module, 8 lo lus 7-ntu digital module. Qhov tso tawm sab nraud pixel module tau teeb tsa tshwj xeeb xws li 4 * 4, 8 * 8, 8 * 16 pixels. Lub pixel module rau lub vijtsam tso rau sab nraum zoov kuj raug xa mus ua lub taub hau pob nchav vim hais tias txhua lub pixel muaj ob los sis ntau tshaj cov raj LED teeb.
Lub Pixel thiab Pixel Txoj kab uas hla: Txhua lub teeb ci LED (dot) uas tuaj yeem tswj hwm tus kheej hauv cov zaub LED yog hu ua pixel (lossis pixel). Lub pixel diam ∮ hais txog lub cheeb ntawm txhua pixel hauv millimetres.
Daws Teeb Meem: Tus naj npawb ntawm kab thiab kab ntawm LED zaub pixels yog hu ua qhov kev daws teeb meem ntawm cov zaub LED. Kev daws teeb meem yog tag nrho cov naj npawb ntawm lub xaib nyob rau hauv cov zaub, uas txiav txim siab qhov peev xwm ntawm cov ntaub ntawv.
Qho Grey: Cov nplai ntsuas yog hais txog qib uas qhov ci ci ntawm lub pixel pauv. Cov nplai grey ntawm thawj cov xim feem ntau muaj 8 txog 12 qib. Piv txwv li, yog tias qib grey ntawm txhua tus thawj xim yog 256 qib, rau lub vijtsam dual xim xim lub teeb xim, cov xim tso saib yog 256 × 256 = 64K xim, uas tseem hu ua 256 xim zaub screen.
Dual lub cim xim: Feem ntau cov xim LED qhia hnub no yog ob hom xim thawj cov xim, uas yog, txhua lub pixel muaj ob lub LED tuag: ib qho rau tus liab tuag thiab ib qho rau cov neeg tuag ntsuab. Lub pixel yog xim thaum lub liab tuag yog lit, lub ntsuab yog ntsuab thaum lub ntsuab tuag yog lit, thiab lub pixel yog daj thaum lub liab thiab ntsuab tuag yog ib txhij lit. Ntawm lawv, xim liab thiab ntsuab yog hu ua thawj xim.
Puv xim: liab thiab ntsuab ob lub hauv paus xim ntxiv rau xiav thawj xim, peb hom xim yog cov xim tag nrho. Txij li cov thev naus laus zis los ua cov yeeb yaj kiab puv xim xiav thiab dawb ntsuab tuag yog tam sim no paub tab, kev ua lag luam yog theem xim tag nrho.
SMT thiab SMD: SMT yog txheej txheem deg tshuab (luv luv rau Kev Tshawb Fawb Mounted Technology), uas yog tam sim no feem ntau cov thev naus laus zis thiab cov txheej txheem hauv cov khoom siv hluav taws xob sib dhos; SMD yog saum npoo ntaus khoom (luv luv rau Cov Ntaus Nto)
Post lub sij hawm: May-04-2020